Question about HP f2105 21" LCD Monitor

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MY HP f2105 21" LCD Monitor is blank, when I reboot, at the startup, I saw only one or two second of HP opening screen and monitor goes back like if there no connection. In I shut off the monitor and pushit it one again, I see my desktop 1 or two second...then, black again. I put a other monitor on my PC and everithing work well. I can't the my monitor with other cable for the moment, but, I dont think it's the cable cause I'm able to see 1 or 2 second a the correct display of my desktop.

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You may be having either the power supply failing due to bad caps, or failed backlight inverter circuits due to short circuits, loose connection due to bad solder joints, or failed lamp assmblies. You will have to open it up and inspect the inside. Do you have proper tolls for electronics repair, isolation transformer for safety so you do not get killed by high voltages inside the monitor?
You can see what your monitor look like here:
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Posted on May 31, 2010

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Posted on Jan 02, 2017

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I am facing problem with my Samsung LCD monitor, when I switched on my Computer it shows the bootup screen, after booting the LCD screen goes blank, when i turned off the monitor and again turned ON the...


Try to do this: Just before the Windows start up screen (after the bios loading) press F8 and log in at safe mode settings. If at this mode you can see your screen change the resolution settings at a lower set. Save and reboot normally. Now try step by step to increase your resolution. In case of a blank screen appears at a new setting, don't do anything; after some seconds the monitor will come back to the previous settings. Save and go on.

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Stelios

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If you are handy at fixing things.

Here is a link of how to fix your monitor. I had the same problem, and found this link, followed the instructions and it cost me $5.13
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HP vs19 LCD Monitor fix
http://boredprojects.blogspot.com/2008/06/hp-vs19d-fix.html

Don't drag out your soldering gun these are too high wattage and will melt the board. Use a 40 to 25 watt soldering iron.

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1 Answer

LCD monitor goes blank


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HP's are known for bad capacitors in the power supply.
Replacing them is simple if you know how..not so simple if you don't.
Try your local TV repair centre. It should not cost alot to have the capacitors replaced.

Hope it helps =)

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